<h4>Tool</h4><table border="0"><tr><td valign="top"><b>Name</b></td><td valign="top">Overland Flow - Kinematic Wave D8</td></tr><tr><td valign="top"><b>ID</b></td><td valign="top">1</td></tr><tr><td valign="top"><b>Author</b></td><td valign="top">O. Conrad (c) 2003</td></tr><tr><td valign="top"><b>Specification</b></td><td valign="top">grid</td></tr></table><hr><h4>Description</h4>Overland Flow - Kinematic Wave D8

Reference:
Johnson, D.L., Miller, A.C. (1997): A spatially distributed hydrological model utilizing raster data structures, Computers & Geosciences, Vol.23, No.3, pp.267-272<hr><h4>Parameters</h4><table border="1" width="100%" valign="top" cellpadding="5" rules="all"><tr><th>Name</th><th>Type</th><th>Identifier</th><th>Description</th><th>Constraints</th></tr>
<tr><th colspan="5">Input</th></tr><tr><td>Elevation </td><td>Grid (input)</td><td>DEM</td><td></td><td></td></tr><tr><td>Gauges (*)</td><td>Shapes (optional input)</td><td>GAUGES</td><td></td><td></td></tr><tr><th colspan="5">Output</th></tr><tr><td>Runoff</td><td>Grid (output)</td><td>FLOW</td><td></td><td></td></tr><tr><td>Flow at Gauges (*)</td><td>Table (optional output)</td><td>GAUGES_FLOW</td><td></td><td></td></tr><tr><th colspan="5">Options</th></tr><tr><td>Simulation Time [h]</td><td>Floating point</td><td>TIME_SPAN</td><td></td><td>Minimum: 0.000000
Default: 24.000000</td></tr><tr><td>Simulation Time Step [h]</td><td>Floating point</td><td>TIME_STEP</td><td></td><td>Minimum: 0.000000
Default: 0.100000</td></tr><tr><td>Manning's Roughness</td><td>Floating point</td><td>ROUGHNESS</td><td></td><td>Minimum: 0.000000
Default: 0.030000</td></tr><tr><td>Max. Iterations</td><td>Integer</td><td>NEWTON_MAXITER</td><td></td><td>Minimum: 1
Default: 100</td></tr><tr><td>Epsilon</td><td>Floating point</td><td>NEWTON_EPSILON</td><td></td><td>Minimum: 0.000000
Default: 0.000100</td></tr><tr><td>Precipitation</td><td>Choice</td><td>PRECIP</td><td>Kind of initializing Precipitation Event</td><td>Available Choices:
[0] Homogenous
[1] Above Elevation
[2] Left Half
Default: 0</td></tr><tr><td>Threshold Elevation</td><td>Floating point</td><td>THRESHOLD</td><td></td><td>Default: 0.000000</td></tr></table>(*) <i>optional</i>